JPS5843442Y2 - Air sensor mounting device for motorcycles - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air sensor mounting device that is mounted on a motorcycle to detect changes in air pressure due to a puncture or the like.

More specifically, by attaching the receiving means to the front fender so as to face the transmitting means attached to the wheel, and by locating this mounting position on the inner surface of the front fender and at the bottom of the front fender, the receiving means is protected from dirt. The present invention relates to an air sensor mounting device for a motorcycle, which prevents adverse effects from external factors such as pebbles and protects a receiving means.

2. Description of the Related Art Air sensors are known that detect a decrease in tire air pressure when a motorcycle has a flat tire, etc., and display this remotely for the driver to feel.

An air sensor consists of a transmitting means attached to the rotating wheel side and a receiving means attached to the stationary side of the vehicle.Tire air pressure is introduced to the transmitting means, and when the tire air pressure decreases, an internal magnet, for example, is activated. The user moves close to the receiving means, closes a reed switch built into the receiving means, and activates an alarm display means such as a lamp.

Since the receiving means incorporates devices such as reed switches whose operation is sensitive, it is necessary to ensure this operation and protect the reed switches etc. from external adverse effects. When determining the mounting location,
It is necessary to keep the receiving means as far away from external factors as possible, such as mud, pebbles, and even muddy water on the road surface, and to prevent the receiving means from being damaged or flooded by these factors.

In view of the above-mentioned demands, the inventors of the present invention have developed the present invention in order to effectively meet the demands.

The purpose of the present invention is to provide an air sensor consisting of a transmitting means attached to a wheel and a receiving means attached to the vehicle body opposite to the transmitting means. By installing the transmitting means at the same relatively high position as the transmitting means mounted on the inner surface of the front fork, at the bottom of the front fender, and close to the outer circumference of the wheel, and away from the road surface, it is possible to prevent external harmful effects such as mud and pebbles. To provide a mounting device for an air sensor of a two-wheeled motor vehicle, which protects a receiving means from damage and also allows the receiving means to be protected by a front fork and a front fender.

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2 show a motorcycle 1 to which the present invention is applied, and a front wheel 2, which is a front wheel, has a front fork 3.
The axle 4 is supported by the lower end of the bottom case 5 of the front fork 3.

The lower part of the front fender 6 that covers the upper surface of the wheel 2 is supported by a stay 7 whose one end is connected to the bottom case 5 of the axle 4 part, and the upper part is supported by a pair of left and right bottom cases 5, 5 facing each other as shown in FIG. Bolt 8 screwed into the inner surface,
8, it is coupled and supported by the front fork 3.

Wheel 2 includes rim 9, spoke plate 10 and hub 11
The tip of the spoke plate N0.10, which is a set of two spokes facing each other in the axle direction, is attached to the rim 9 with a rivet 12.
The base end is attached to the protrusion 9a formed on the inner peripheral surface of the hub 1.
1 with bolts and nuts 13.

As a result, the rim 9 and the hub 11 are connected and integrated by the plate 10, and the wheel 2 is formed.

The transmitting means 15 constituting the air sensor 14 is attached to the plate 1.
0, and attach it to the plate 10 with fasteners 16 such as rivets, and set the mounting position closer to the rim 9 at the outer circumference of the wheel than the hub 11 at the center of the wheel. The means 15 is attached close to the outer circumferential side of the wheel 2.

The inside of the transmitting means 15 communicates with the inner chamber of the tire 17 via a pipe member (not shown), and tire air pressure is introduced therein.

Also, a magnet is incorporated inside the transmitting means 15, supported by a floating plate made of a plate spring material, and when the tire air pressure is at a normal value, the magnet moves backward, and when the tire air pressure decreases due to a puncture, etc., the spring rebounds. Pushed by the force, the magnet moves forward together with the floating plate.

A reed switch is incorporated inside the receiving means 18 that constitutes the air sensor 14 together with the transmitting means 15, and this reed switch closes due to the magnetic action of the magnet that moves forward as the tire air pressure decreases, and the alarm means such as a lamp is activated. is activated to make the driver aware of an abnormality in air pressure.

The receiving means 18 is mounted on the front fork 3 at the same height as the transmitting means 15, this mounting is performed using a stay 19, and the bolt 8 for fixing the front fender 6 is inserted into the base 19a of the stay 19. Receiving means 1
The stay 19, which is coupled and supported by the front fender 6, is aligned with the bottom case 5 of the front fork 3 by the same bolt 8.

As a result, the receiving means 18 is connected to the pair of left and right bottom cases 5.
, 5 facing each other, and will be attached to the lower part of the front fender 6, and the mounting position is at the same height level as the transmitting means 15, which is attached closer to the outer circumference of the wheel 2. , higher than the center of wheel 2 and separated by light from the road surface.

Therefore, the receiving means 18 is mounted at a position that is advantageous against mud, pebbles, muddy water, etc. thrown up from the road surface when the motorcycle 1 is running, and furthermore, the receiving means 18 is mounted on the inner surface of the front fork 3 and on the front fender 6. front fork 3, from external factors such as mud and pebbles.
The reception means 18 is protected by the front fender 6, and can be prevented from being adversely affected by external influences as much as possible.

Further, the receiving means 18 is connected to the front fork 3 that constitutes the vehicle body.
When installing it on the front fender as mentioned above,
Since the fixing bolt 8 of No. 6 is used, there is no need for a bolt dedicated to the receiving means 18, the bolt 18 can be used for multiple purposes, and the number of parts can be reduced by using existing parts.

Furthermore, since the bottom case 5 of the front fork 3 to which the receiving means 18 is attached supports the wheel 2 at its lower end and moves up and down following the wheel 2, the receiving means 1
8 and the transmitting means 15 attached to the wheel 2 are always the same even when the wheel 2 moves up and down and the front fork 3 moves correspondingly. The position is secured and the air sensor 14 can be operated reliably.

As is clear from the above explanation, according to the present invention, the receiving means is attached to the front fork so as to face the transmitting means attached near the outer circumference of the wheel close to the rim, and the receiving means is mounted at a high height away from the road surface. Moreover, since this mounting position is located on the inner surface of the front fork and at the bottom of the front fender, the receiving means can be protected from external factors such as mud and pebbles, and can be prevented from being adversely affected by external influences. In addition to effectively preventing damage to internal equipment such as reed switches and ensuring the safety of the receiving means,
In addition, it has various features such as improved assemblability in attaching the receiving means and cost reduction due to fewer parts.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the motorcycle, FIG. 2 is a front view thereof, and FIG. 3 is an enlarged longitudinal sectional view showing the state in which an air sensor is installed. In the drawing, 1 is a motorcycle, 3 is a front fork, and 6 is a motorcycle.
114 is an air sensor, 15 is a transmitting means, and 18 is a receiving means.

Claims (1)

[Scope of utility model registration request] In an air sensor consisting of a transmitting means attached to a wheel and a receiving means attached to the vehicle body so as to face the transmitting means, the transmitting means 15 is attached near the outer circumference of the wheel 2, and the receiving means 18 is attached to the approximate width of the rim 9. An air sensor for a motorcycle, characterized in that a stay 19 that supports a receiving means 18 is attached to an inner cylinder of a front fork 3 collinearly with the front fender 6. mounting device.